## Earth is approximately a sphere of radius

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Earth is approximately a sphere of radius 6.37 x 106 m. What are (a) its circumference in kilometers, (b) its surface area in square kilometers,and (c) its volume in cubic kilometers? Solutions (a) Its circumference…

## Solve Physics Problem Momentum

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Solve Physics Problem Momentum. An object with a mass of 3 kg has a momentum 75 kg.m/s. What is its velocity? A. 0.4 m/s B. 7.1 m/s C. 25 m/s D. 72 m/s Solution :…

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Problem Solve about Resitance. An appliance draws 4 A of current when connected to 120 V. What  is the resistance of the appliance? A. 0,03 B. 30 C. 124 D. 480 Solve : \begin{aligned} V…

## Problem Solve about Power Electric

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An electric fan has a power output of 60 W. How much work is done if the fan operates for 120 s? A. 0.5 J B. 60 J C. 120 J D. 7200 J Solve…